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Inga [223]
3 years ago
14

Explain how layers that form in ice are similar to tree rings. ​

SAT
2 answers:
jek_recluse [69]3 years ago
4 0
Layers of ice and tree rings are similar in that they can both record or store data from past environmental conditions. ... Layers of ice in an ice sheet trap information that can tell about past conditions such as climate. Just like the tree rings specific sections represent a specific period of time.

brainlist would be nice i’m trying to rank up
but i hope this helped
Georgia [21]3 years ago
3 0

so basicly as years go by a trunk of a tree get's thicker so does the ice so when climate change happens it would change a layer of ice or of the tree trunk then as time goes by scientist can test the ice or the tree to see the history in the past from the layers of ice to trees

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emmasim [6.3K]

Answer:

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Explanation:

8 0
3 years ago
A 20.0-ml sample of a 0.200 mhbr solution is titrated with a 0.200 mnaoh solution. calculate the ph of the solution after the fo
kumpel [21]

The calculated pH of the solutions are given below:

  • The pH of the solution after 14.0 ml of base is added to it is calculated as 1.45.
  • The pH of the solution after 19.8 ml of base is added to it is calculated as 3.0
  • The pH of the solution after 20.0 ml of base is added to it is calculated as 7.

<h3>What is pH?</h3>

This is the level of acidity or alkalinity of an aqueous solution. The pH of a substances tells if its an acid, base or neutral.

HBr and NaOH while in water would dissociate and they would become H+ and OH- respectively.

Mol of HBr = Mol * Vol

= 0.200 * 20mL

= 4 mmol

A. Moles of NaOH added

= 0.2 X 14

= 2.8 mmol

Moles of H+ that did not react

= 4 - 2.8

= 1.2 mmol

1.2/1000 = 0.0012 moles

Total volume = 20 + 14

= 34 mL to litres

= 0.034 L

Molarity of H+ = 0.0012 / 0.034L

= 0.035 M

-log[0.035] = 1.45

The pH of the solution is  1.45

B. NaOH added = 19.8 * 0.2 =

3.96 mmoles

The unreacted solution

= 4.0 - 3.96

= 0.04 mmol

0.04/1000 = 0.00004 moles

Total volume = 20 + 19.8

= 39.8mL

Converted to litres = 0.0398L

Molarity  = 0.00004 / 0.0398L

= 0.001

-log(0.001) = 3.0

The ph Is therefore 3.0

C. Moles of NaOH added = 0.2*20mL = 4mmol

All the H+ are going to be consumed here. This would result into a neutral solution pH = 7

<u>Complete question:</u>

20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the PH of the solution after the following volumes of base have been added.

A. 14.0 mL

B. 19.8 mL

C. 20.0 mL

Read more on pH here; brainly.com/question/22390063

3 0
2 years ago
Which exponential function is represented by the table? f(x) = 0. 2(0. 5x) f(x) = 0. 5(5x) f(x) = 0. 5(0. 2x) f(x) = 0. 2(0. 2x)
blagie [28]

Answer:

i think it's f(x)=0. 2(0.2x)

hope this helps

7 0
3 years ago
I need help asap please? and this is for the sat question? why do people lie to others
ikadub [295]
It is usually to cover up some mistake or area of weakness. Sometimes it is to brag about something and make themselves look better.
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2 years ago
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HELP ME I’M LOST NO BS How Could Krusty’s Experiment been Improved? PLEASE DUE TONIGHT WILL GIVE BRAINLIEST!!!!!!
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Explanation:

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